/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.apis.animation;

// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.example.android.apis.R;

import android.view.View;

import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;
import android.widget.GridLayout;

/**
 * This application demonstrates how to use the animateLayoutChanges tag in XML
 * to automate transition animations as items are removed from or added to a
 * container.
 */
public class LayoutAnimationsByDefault extends Activity {

	private int numButtons = 1;

	@Override
	public void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);
		setContentView(R.layout.layout_animations_by_default);

		final GridLayout gridContainer = (GridLayout) findViewById(R.id.gridContainer);

		Button addButton = (Button) findViewById(R.id.addNewButton);
		addButton.setOnClickListener(new View.OnClickListener() {
			public void onClick(View v) {
				Button newButton = new Button(LayoutAnimationsByDefault.this);
				newButton.setText(String.valueOf(numButtons++));
				newButton.setOnClickListener(new View.OnClickListener() {
					public void onClick(View v) {
						gridContainer.removeView(v);
					}
				});
				gridContainer.addView(newButton,
						Math.min(1, gridContainer.getChildCount()));
			}
		});
	}

}